18690328

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{233}}^1\times {\mathrm{271}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 36279360

約数和(自身を除く): 17589032

約数列:

[1, 2, 4, 8, 37, 74, 148, 233, 271, 296, 466, 542, 932, 1084, 1864, 2168, 8621, 10027, 17242, 20054, 34484, 40108, 63143, 68968, 80216, 126286, 252572, 505144, 2336291, 4672582, 9345164, 18690328]

約数ペア:

[(1, 18690328), (2, 9345164), (4, 4672582), (8, 2336291), (37, 505144), (74, 252572), (148, 126286), (233, 80216), (271, 68968), (296, 63143), (466, 40108), (542, 34484), (932, 20054), (1084, 17242), (1864, 10027), (2168, 8621)]